Senior Node.js & TypeScript Backend Engineer

Infolet; Polska; Ibrido; PLN 208.000 - 254.000; Tempo pieno

Vantaggi offerti da questo lavoro

Extended medical care

Multisport card

Life insurance

Descrizione del lavoro

Infolet is seeking a Senior Node.js/TypeScript Developer to join our backend team. You will build and maintain scalable services and integrations in an international environment, focusing on reliability, observability, and performance.

You will implement unit and integration tests, troubleshoot runtime issues, and contribute to CI/CD pipelines using Azure DevOps or GitHub Actions. English fluency and strong coding practices are essential.

Competenze

• Fluent in English and experience working with international, distributed teams.
• Solid knowledge of TypeScript fundamentals, interfaces, generics, type inference, and type safety.
• Hands-on experience developing backend applications and REST APIs using Node.js and Express.
• Experience with unit and integration testing using Jest or Vitest (TDD).
• Practical experience with Azure DevOps or GitHub Actions and CI/CD pipelines.
• Experience with AI-assisted development tools (Claude Code, GitHub Copilot, MCP).
• Strong debugging, performance analysis, and regression investigation skills.

Mansioni

• Build and maintain middleware layers and service integrations.
• Write clean, maintainable, and well-tested code following modern practices.
• Develop and maintain unit and integration tests using Jest/Vitest (TDD).
• Analyze and troubleshoot runtime errors, performance issues, and regressions.
• Work with asynchronous processing, batch operations, and database transactions.
• Identify and resolve security vulnerabilities in code and dependencies.
• Configure and troubleshoot CI/CD pipelines using Azure DevOps or GitHub Actions.
• Design observability and monitoring tools for operations and support teams.

Conoscenze

Fluent in English

Unit and integration testing

Debugging and troubleshooting

TypeScript fundamentals

Strumenti

Node.js

Express

Jest

Vitest

Azure DevOps

GitHub Actions

Claude Code

GitHub Copilot

NPM ecosystem

Descrizione del lavoro

Infolet is seeking a Senior Node.js/TypeScript Developer to join our backend team. You will build and maintain scalable services and integrations in an international environment, focusing on reliability, observability, and performance.

You will implement unit and integration tests, troubleshoot runtime issues, and contribute to CI/CD pipelines using Azure DevOps or GitHub Actions. English fluency and strong coding practices are essential.